DNS Record Lookup
Lookup all DNS record types (A, AAAA, CNAME, MX, NS, TXT, SOA) for any domain
Domain Age Checker
Check how old a domain is and when it was first registered
Domain Expiration Checker
Check when a domain expires and get renewal reminders for your domains
WHOIS Lookup
Get WHOIS registration information for any domain including owner, registrar, and contacts
Domain Availability Checker
Check if a domain name is available for registration across TLDs
NS Record Lookup
Lookup nameserver (NS) records to identify which DNS servers host a domain
TXT Record Lookup
Lookup TXT records for SPF, DKIM, verification codes, and other text-based DNS entries
CNAME Record Lookup
Lookup CNAME (alias) records to find domain aliases and subdomains
A Record Lookup
Lookup A records to find IPv4 addresses associated with a domain
AAAA Record Lookup
Lookup AAAA records to find IPv6 addresses associated with a domain
SOA Record Lookup
Lookup SOA (Start of Authority) records for domain admin and zone configuration
DNS Propagation Checker
Check if DNS changes have propagated across servers worldwide
Domain Authority Checker
Check domain authority (DA) score and compare against competitors
SSL Certificate Checker
Check SSL certificate details, expiration, and validity for any domain
Subdomain Finder
Discover all subdomains for a given domain including hidden ones
Domain IP History
Check historical IP addresses a domain has pointed to
DNSSEC Validator
Validate DNSSEC implementation for enhanced DNS security
Reverse IP Lookup
Find all domains hosted on the same IP address
Domain Status Code Checker
Check HTTP status codes and redirect chains for any domain
DNS Health Checker
Run comprehensive DNS health audit checking all record types and configuration
Automate Your Domain & DNS Tools
These free tools are great for quick checks. FirstSales automates your entiredomain & dns tools workflow with AI-powered personalization.
FAQ
Frequently Asked Questions
Learn how Firstsales protects your domain, lands emails in inboxes, and turns cold outreach into revenue—everything in one place.
Yes, 100% free. All tools in this category work without signup, email capture, or payment. We provide these free tools to demonstrate expertise and help sales teams succeed.
Our tools check live data and query relevant services in real-time. Results are accurate at the time of checking, but remember that some metrics and statuses can change frequently.
Yes, all tools are free to use for both personal and commercial purposes. Sales teams, agencies, and businesses worldwide use our tools daily.
No account required. Simply navigate to any tool and start using it immediately. For advanced features and team management, consider creating a free FirstSales account.
